INA219 - Texas Instruments

INA219 Bidirectional Current/Power Monitor

The INA219 is a current shunt and power monitor with an I2C- or SMBUS-compatible interface. The device monitors both shunt voltage drop and bus supply voltage, with programmable conversion times and filtering. A programmable calibration value, combined with an internal multiplier, enables direct readouts of current in amperes. An additional multiplying regis.

Features

•1 Senses Bus Voltages from 0 to 26 V
• Reports Current, Voltage, and Power
• 16 Programmable Addresses
• High Accuracy: 0.5% (Maximum) Over Temperature (INA219B)
• Filtering Options
• Calibration Registers
• SOT23-8 and SOIC-8 Packages 2 Applications
• Servers
• Telecom Equipment
• Notebook Computers
• Power Management
• Battery Chargers
• Welding Equipment
• Power Supplies
• Test Equipment 3 Description The INA219 is a current shunt and power monitor with an I2C- or SMBUS-compatible interface. The device monitors both shunt voltage drop and bus supply voltage, with programmable conversion t.